Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December involves a decrease in temperature, down from a fresh 53.4°F (11.9°C) in November to a frosty 43.5°F (6.4°C). Throughout December, the average low-temperature in Boss records at a subzero cold 29.7°F (-1.3°C).Humidity
In December, the average relative humidity in Boss is 78%.Rainfall
In Boss, during December, the rain falls for 8.2 days and regularly aggregates up to 2.28" (58mm) of precipitation. In Boss, Missouri, during the entire year, the rain falls for 151.7 days and collects up to 33.98" (863mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In December, it is snowing for 4.5 days. Throughout December, 1.65" (42mm) of snow is accumulated. In Boss, during the entire year, snow falls for 24 days and aggregates up to 10.98" (279mm) of snow.Daylight
The month with the shortest days in Boss is December, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 7:01 am and sunset at 4:46 pm. On the last day of December, in Boss, sunrise is at 7:19 am and sunset at 4:56 pm CST.
Sunshine
In December, the average sunshine in Boss is 4.9h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Boss. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: The UV index of 2 in December translates into these instructions:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in Boss in December?
What is the average humidity in December in Boss?
How much does it rain in Boss in December?
How many days does it snow in December in Boss?
What is the month with the shortest days in Boss?
How many hours of daylight does Boss have in December?
When are sunrise and sunset in December in Boss?
How many hours of sunshine does Boss have in December?
When is the lowest UV index in Boss?
What is the UV index reading in December in Boss?
Average temperature in December
Boss, MO
- Average high temperature in December: 43.5°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (39.9°F).
- Average low temperature in December: 29.7°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in December
Boss, MO
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Boss, MO
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in December
Boss, MO
- Average humidity in December: 78%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Boss, MO
- Average rainfall in December: 2.28"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in December
Boss, MO
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in December
Boss, MO
- Average snowfall in December: 1.65"
The month with the highest snowfall is February (4.25").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Boss, MO
- Average snowfall days in December: 4.5 days
The months with the highest number of snowfall days are January and February (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Boss, MO
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Boss, MO
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in December
Boss, MO
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Boss, MO
- Average cloud cover in December: 49
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in December
Boss, MO
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are January, May, July, August and September (5mi).
Boss, Missouri, USA
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